next story

Would You Carry a Breathalyzer on Your Keychain? This New Device Might Change Your Mind

Here's the scene: You're at a summer barbecue. You've had some watermelon. A burger. Some salad. And...yes, at least a few cocktails. So when it's time to drive home, what's a girl to do?

That's where this neat little device can help!

The BACtrack Vio is a teensy little gadget ($49.99) that hooks right onto your key chain. It's a breathalyzer—you simply blow into it for a few seconds, and all the info about your blood alcohol levels go straight to an app on your iPhone or Android. Then, the app tells you if you're inebriated or not.

Feel weird having a, uh, breathalyzer on your person? It's actually pretty useful to have it nearby, just in case, especially on those summer evenings when you head to happy hour (your friends can use your BACtrack too!). Granted, on a day-to-day level, it may be a little weird to have on your key chain—especially when you whip out your keys after a coffee date or a business meeting#8212;but the Vio is subtle enough that it looks like a simple USB drive.